Got my GS a week or so ago. Unfortunately I have an iPad 2. The app needed only works in v.3 and higher. So I'm trying to tackle the PC GS software. As mentioned several times here, the DJI PC GS manual is somewhat a challenge to interpret. I have not taken a real flight yet. Hoping to do one this weekend. I have only flown the Sim. Here are my questions: Do you need to set the entire system up (P2 up & running and ground end hooked to PC) to make the Sim work? It would be easier to practice if you did not need to set all the hardware up. I am not clear on setting the altitude for flight. In the Editor, there is a place for waypoint altitude. But the default is 3.xxxx meters ( for my system). Given this is the Sim, if I left this as defaulted in real flight, would I be flying at 3m? What is the best way to set AGL altitude? On the map, there are number graphics in both blue & red for each waypoint. What do these mean? Altitude? I have other questions but these are my current head scratchers. Thanks!